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Methods of Measuring Beta Ray Energies
Experimental procedure and Method
Beta Ray Spectrum of Na24
4 other sections not shown
54 minute absorption curve accurate actinium agreement Alichanian alpha particle Amaldi artificially radioactive beryllium beta decay beta intensity beta particles beta ray energies beta ray spectrum beta spectra boron oxide chemically identified cloud chamber co-workers complex spectrum continuous spectrum Crittenden curve is shown cyclotron decay curve disintegrates electrometer end points obtained energy end point extrapolated range fibre gamma ray background half life determined indium iodine ionization chamber lithium target logarithm magnetic spectrograph obtained magnetic spectrograph value microamperes of deuterons neutrino observation time intervals percent plates plotted positron Present Absorption Measurements Previous ork Proc Camb Proc Roy produced by bombarding radiation radioactive elements RaE curve RaE is shown range energy relation rate of drift resolution magnetic spectrograph Richardson sample Sargent Seaborg sensitivity shape short period shown in Figure slow neutron total absorber thickness total intensity upper limit visual end point